How many solutions does the system have? 6x - y = -1 6x+y=-1
2 answers:
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Answer:
a) 4.387
b) Yes, because np & npq are greater than 10.
c) = 0.017
Step-by-step explanation:
Give data:
p = 0.69
n = 90
a) a
E(X) = np = 62.1
= 4.387
b)
np = 62.1
q = 1 - p = 1 - 0.69 = 0.31
npq = 19.251
Yes, because np & npq are greater than 10.
c.
[continuity correction]
= P(Z> 2.14 )
= 1 - P(Z<2.14)
= 1 - 0.983 (using table)
= 0.017
Answer:
y = -2x + 7
Step-by-step explanation:
P.S: I solved it twice to show you that it doesn't matter which point you choose, you will get the same result.
But it is important when you calculate the slope
If you have any questions about the way I solved it, don't hesitate to ask me in the comments below ÷)
